ci: bump actions/checkout@v3 -> v4

Author: guitarrapc

.github/workflows/build-debug.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet build -c Debug
       - run: dotnet test -c Debug --no-build

.github/workflows/build-release.yml

@@ -28,7 +28,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - run: echo ${{ needs.update-packagejson.outputs.sha }}
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
@@ -47,7 +47,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - run: echo ${{ needs.update-packagejson.outputs.sha }}
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
       # check meta files